Yum Fails with Error: database disk image is malformed

How To Resolve Yum Fails with "Error: database disk image is malformed" in /var/log/messages

This Issue is applies for:

Linux OS - Version Oracle Linux 6.0 and later

Oracle Cloud Infrastructure - Version N/A and later

Linux x86-64

Linux x86

Issue:

You cannot run any command related to yum and below the error messages in the / var / log / Messages file.

Incorrect configuration or damaged yum database

Error: database disk image is malformed

# yum update Loaded plugins: aliases, changelog, downloadonly, kabi, presto, refresh-packagekit, security, tmprepo, verify, versionlock 

Loading support for kernel ABI 

Setting up Install Process 

Ol6_latest | 3.0 kB 00:00 

Ol6_latest/primary_db | 78 MB 00:10 

 [Errno 2] No such file or directory: '/var/cache/yum/x86_64/6Server/Ol6_latest/primary.sqlite.bz2' 

Loaded plugins: aliases, changelog, downloadonly, kabi, presto, refresh-packagekit, security, tmprepo, verify, versionlock 

Loading support for kernel ABI 

Setting up Update Process 

Ol6_latest/primary_db | 78 MB 00:10 

Resolving Dependencies 

--> Running transaction check 

---> Package expat.x86_64 0:2.0.1-11.el6_2 will be updated Error: database disk image is malformed

Solution for Yum Fails with error database disk image is malformed:

1. Check and delete any unwanted or wrongly configured files under the path /etc/yum.repos.d/ 
2. Run "yum clean all" command. 
3. Now try to perform "yum update"

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pavan

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